Straight-knitting machine.



No. 782,480. PA'TENTED FEB. 14, 1905.

A. BENNDORF. STRAIGHT KNITTING MACHINE.

APPLICATION FILED DGT. Z4, 1902.

5 SHEETS-SHEET 1.

No. 782,480. n l PATENTBD PEB. 14, 1905.

` A. BBNNDORF.'

vSTRAIGH'J? KNITTING MAGHINB.

APPLIoATloN FILED 0012x1902. v 5 SHEETS-SHEET z.

E @MV PATENTBD FEB. 14, 1905.

A. BENNDORE. STRAIGHT KNITTING MAGHINE.

APPLICATION FILED 00T. 24, 1902.

5 SHEETS-SHEET 3.

y2. %wmg PATENTED PEB. 14, 1905.

` ABENNDORFJ STRAIGHT KNITTING MAGHINE.

APPLICATION FILED 00T 24 1802 5 SHEETS-511531 -4.

No. 782,480. PATENTED FEB. 14,1905.

1 STRAIGHT KNITTING 1111101111111.

APPLIGATIoN FILED 001224, 1902.

' 5 SHEETS-SHEET 5.

iig. y@

WQ .l

EQ /f '0,

UNITED STATES Patented February 14, 1905.

ALBIN BENNDORF, oF ZEULENRODA,4 GERMANY.

STRAIGHT-KNITTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 782,480, dated February 14, 1905. Appiicaiou ned october'zi, 1902. serai No. 128,656.

f len roda, Reuss, Germany, have invented a new and useful Straight- Knitting Machine, of which the following is a specification.

This invention relates to certain new and useful improvements instraight-knitting machines of that class in which auxiliary needlebeds are employed. Y

The object of this inventionis to providea straight-knitting machine with two needlebeds for the production of tubular weft-mesh goods with widening and narrowing devices distinguished very materially from the machines of this kind heretoforeexisting by having the auxiliary needles arranged between the operating-needles directly in the beds of the latter, so that they cooperate with the operatingneedles in the opposite needle-bed transversely and one after the other, and so transfer the sinker-meshes hanging upon them upon the operating-needles of the opposite bed. The widening and narrowing of the tubular goods is effected in a manner well known in the art.

The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a vertical cross-section through a machine constructed in accordance with my invention. Figs. 2 to 5 show the cams Kemployed in their different positions. Figs. 6 to 11 are detail views showing the different positions the needles assume during the for- -mation of the meshes-and Fig. 12 shows a portion ofthe finished goods. Fig. 13 is a diagrammatic view of the needle-beds, showing means for shogging thesame endwise.

In the drawings, a arepresent the two needle-beds in which the operating-needles b and the auxiliary needles c c' are placed, while Z d' and e e' are the respective cams, and ff the tln'ead-carriers. g g are the ground or mesh c" and the sinker-mesh k.

the auxiliary needle c is upon the needle-lifting cam `Z. The operating-needle b is now grasped by the depressing-cam of the cam (l, so as to form the new ground mesh t". Meanwhile the auxiliary needle c', upon which at this ltime no mesh is hanging, is drawn off simultaneously from the needle-Sinkel 2 of the cam c', by which operation the sinker-mesh L is formed. Fig. 7 represents the needles upon their way back during the operation of forming the meshes, and Figs. 8 and 9 represent the needles with the finished new-formed meshes. If the carriage stands now moved out to the left, the needle-bed in front will be displaced for half the length of a needle-bed and a layer of meshes, as shown in Fig. 9, will be formed. During the following movement from the left to the right the weft-thread carrier f will advance and hang the weft-thread g over the meshes c" and ryFig. 9a. The operating-needle bis now grasped by theliftingcam of the cam d; but the auxiliary needle cis grasped by the needle-came of the cam e. As the shaft-surface of the auxiliary needle c' is provided with a channel or groove t, the sinker-mesh is raised by means of said groove so high that the operating-needleb can enter, Figs. 10 and 10a, when the needles and o' are upon the highest points of the needle-lifting cam 4L of the cams d and e', so that they will be drawn backward in the next moment by the depressing-cam 5 ofthe cams CZ and e. During this back wardmovement thetongue of th eauxiliary needle c closes itself by the sinkermesh 7c sliding above it and the sinker-mesh is beaten off l, by the auxiliary needle and .thrownV onto the needle-lifting cam of the retreating operating-needle The operating- Vneedle has during this movement only been raised 'to half the height, so that the groundmesh i was not beaten off. Consequently the operating-needle I) has now two kinds of meshes upon its hooks-namely, the ground- Between both is the shoot-th read g', `tied up underneath the shaft of the needle b, Fig. 11. Furthermore, the parts 1 and 3 are acting during this Inovement, as well as the .parts 1 and 2 of the cam e, to form again ground and sinker meshes upon the needles 1) and c. With these needles IOO l the same operation as described with reference to the needles b and c is repeated. The

movement of the needle-bed is elected alter-v nately to the left or to the right. The Figs. 2, 3, 4, 5, and 2 show the total modus of operation of the"cam parts and needles, while the dotted lines represent the parts which are not working or which are disengaged. The parts 1 and 2 or 1 and 3 of all cams are always forming new ground and sinker meshes. Meanwhile the parts 4 and 5 bring always the sinker-meshes (fang-ears) of the auxiliaryneedles c e upon the operating-needles Z) 2) or perform the tying up of the shoot-thread.'

The operation of the machine is the following: The rows of needles Z) b' and the rows of auxiliary needles c c' coperate alternately, and the thread-carrier f preceding the cams of each row carries the thread for the formingofthe ground goods to the needles in a manner already known, so thatA the thread can be grasped by the needles and the tubular web knit, Fig. 6. Suppose the parts 1 2 3 of the cam CZ and the parts l 2 3 ofthe cam c' are in operating position, but the parts 4 5 of the cam d, the parts 4 5 of the cam c', and the cams ed are disengaged. Theoperating-needles b for the Jforming of needle-meshes and the auxiliary needles c' for the formation of sinker-meshes 7c, Fig. 6, will then be caused to move. During the next movement of the carriage the parts 4 5 of the cam d and the parts 4 5 of the cam e' will cooperate. The thread f, which carries the weft-thread g', is preceding the cams and lays the thread g', Figs. 9 and 9', between the needle and Sinkel' meshes.v After this the sinker-mesh is raised by means of the channel or groove L upon` parts 4 and 5 of the cams l e the parts 1 2 3 of the cams e d' are cooperating during the same movement of the carriage, so that needle and sinker meshes are formed again, be-

tween which in the next row the weft-thread g' is laid, so that by and by the goods as shown in Fig. 12 are produced. Fig. 13 shows a orvenient way of shogging one of the needleneedlesand directly in the beds of the latter.

2. In a straight-knitting` machine, two needle-beds arranged at an angle to each other, operating and auxiliary needles in each bed with all the auxiliary needles between the operating-needles and directly in the bed of the latter, with all the needles in one bed in the same plane and the auxiliary needles alternating with the operating-needles, and means to operate the needles.

3. In a straight-knitting machine, two needle-beds, arranged atan angle to each other,op erating and auxiliary needles in each bed with all the needles in one bed in the same plane and the auxiliary needles arranged alternately with the operating-needles and directly in the beds of the latter, the auxiliary needles being formed with semicircular channels, and means for operating the needles.

l4. In a straight-knitting machine, two needle-beds, operating and auxiliary needles in each bed with all the needles in one bed in the same plane, and the auxiliary needles arranged alternately with the operatingneedles, the auxiliary needles being formed with semicircular channels, cams, and cams for acting upon the auxiliary needles to lift the meshes so that they may be shogged arranged to act in front of said first-mentioned cams, and means to shog one of the needle-beds.

In testimony whereof I aliix my signature.

ALBIN BENNDORF. In presence of J. STEPHAN, ERNST SOHNABEL.

IOO 

